For the following questions answer them individually
The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency '$$A$$' $$\times 10^{12}$$ hertz and that has a radiant intensity in that direction of $$\frac{1}{B'}$$ watt per steradian. '$$A$$' and '$$B$$' are respectively
The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium $$= 99$$)
Match List I with List II:

Choose the correct answer from the options given below:
Match List I with List II:

Choose the correct answer from the options given below:
The correct increasing order for bond angles among $$BF_3$$, $$PF_3$$ and $$ClF_3$$ is :
The incorrect statement regarding ethyne is
For a sparingly soluble salt $$AB_2$$, the equilibrium concentrations of $$A^{2+}$$ ions and $$B^-$$ ions are $$1.2 \times 10^{-4} M$$ and $$0.24 \times 10^{-3} M$$, respectively. The solubility product of $$AB_2$$ is :
The correct stability order of the following resonance structures of $$CH_3 - CH = CH - CHO$$ i
Total number of stereo isomers possible for the given structure :
Which out of the following is a correct equation to show change in molar conductivity with respect to concentration for a weak electrolyte, if the symbols carry their usual meaning :